are they going to release a usb version of BT4 like they have with 3?

if not, how do i put it on my usb? is it simply download the final .iso and use unetbootin to put it on my usb?

thanks

i've got the same problem. it just hangs on "looking for data directory" for like 10 minutes and then it goes to a blank, black screen. I'm actually booting it right now and it's just making noises...